Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jaroslav Ing ZimmerfiledCriticalJaroslav Ing Zimmer
Priority to CS82686ApriorityCriticalpatent/CS243505B1/en
Publication of CS68682A1publicationCriticalpatent/CS68682A1/en
Publication of CS243505B1publicationCriticalpatent/CS243505B1/en